sme-rko-finance-front-operations-feed-modelsnpm
Advisory published Updated
sme-rko-finance-front-operations-feed-models is a confirmed malicious npm package (MAL-2026-13637) that typosquats a legitimate package to trick installs (malicious version 35.8.1). Do not install it — remove it immediately and rotate any exposed credentials.
Malicious code in sme-rko-finance-front-operations-feed-models (npm)
What this malware does
index.js unconditionally requires./runtime on package load. runtime.js selects a platform-specific endpoint, downloads a binary over HTTPS from one of four string-split *.workers.dev hosts (e.g. oob-worker.cf103-070.workers.dev), with a DNS TXT chunked-base64 fallback to sdk.dl.wel1.ru, writes the payload to /tmp or %TEMP% under a decoy name (.cache<hex> or dotnet_diag<hex>.exe), chmods it 0755, and detach-spawns it via /bin/sh -c or cmd.exe. Network destinations are assembled at runtime by joining fragmented string arrays to evade static analysis, filenames impersonate dotnet diagnostics, and execution is rate-limited via a stamp file in /tmp. The fetched bytes are attacker-controlled opaque native executables unrelated to the package's stated purpose.
Malicious versions
Indicators of compromise (SHA-256)
Detection & response playbook
TyposquatFind it
Search your lockfiles and build artifacts for sme-rko-finance-front-operations-feed-models (version 35.8.1).
If you installed it — respond
sme-rko-finance-front-operations-feed-models is a typosquat — you almost certainly intended a legitimately-named package. Remove sme-rko-finance-front-operations-feed-models, install the correct package, and rotate any secrets exposed during the install since post-install scripts may have already run.
Did it already run?
If sme-rko-finance-front-operations-feed-models was installed, its post-install payload may already have run. Removing the package does not undo that — check outbound connections and credential use from the install window onward.
Frequently asked questions
Campaign
References
Credits
- Amazon Inspector · finder
Detect & block this
O3 blocks sme-rko-finance-front-operations-feed-models-class packages before install and in CI — and if it already ran, its runtime egress monitoring catches the malicious outbound activity and severs the channel.